Appendix a. normalization and function test, A.1 normalization – Campbell Scientific EasyAG Probe for Soil Volumetric Water Content Profiles User Manual
Page 19
Appendix A. Normalization and
Function Test
Normalization is the setting of the range over which the electronics is effective.
This range is bounded by the two extremes of air and water.
A.1 Normalization
Connect +12 Volts DC and ground to the green connector at the top of the
probe as shown in Figure A-1.
FIGURE A-1. SDI-12 Interface Power Connection
Connect the Intelligent Probe Utility Cable (P/N SEN06020) to the TTL port
near the top of the probe at the location indicated in Figure A-2.
FIGURE A-2. SDI-12 Interface TTL Connection
Connect the other end of the utility cable to the serial port on a PC. This may
require a 9 to 25 pin serial adaptor. CSI serial cable (P/N 7026) is available as
an adaptor.
A-1
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